On 2018-02-13 08:18 PM, Felix Kuehling wrote: > On 2018-02-13 01:15 PM, Christian König wrote: >> Am 13.02.2018 um 18:18 schrieb Felix Kuehling: >> >>> I don't see how you can have separate TTM objects referring to the >>> same memory. >> >> Well that is trivial, we do this all the time with prime and I+A laptops. > > As I understand it, you use DMABuf to export/import buffers on multiple > devices. I believe all devices share a single amdgpu_bo, which contains > the ttm_buffer_object. The dma-buf exporter and importer can be different drivers, so this is not possible. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer
